Syncboot/makefile
Curle 4edd4b7cc8 Major refactor. Major improvements.
All ISR/IRQ stuff moved into its own header and source.

Comments added on all major parts.

Some optimisations in important functions.

All ASM removed for ISR and IRQ, instead using new GCC directives.
2019-06-27 19:57:54 +01:00

92 lines
2.2 KiB
Makefile
Executable File

DEFAULT_HOST:=i686-elf
HOST?=DEFAULT_HOST
HOSTARCH:=i386
CC:=$(PREFIX)/bin/$(DEFAULT_HOST)-gcc
CFLAGS?= -O0 -g -fno-pie -fno-stack-protector -Wl,--build-id=none
CPPFLAGS?=
LDFLAGS?=
LIBS?=
DESTDIR?=
PREFIX?=/usr/local
EXEC_PREFIX?=$(PREFIX)
BOOTDIR?=$(EXEC_PREFIX)/boot
INCLUDEDIR?=$(PREFIX)/include
CFLAGS:=$(CFLAGS) -ffreestanding -Wall -Wextra -I"../include" -I"../../include"
CPPFLAGS:=$(CPPFLAGS) -D__is_kernel -Iinclude
LDFLAGS:=$(LDFLAGS)
LIBS:=$(LIBS) -nostdlib -lgcc
ARCHDIR=arch/$(HOSTARCH)
include $(ARCHDIR)/make.config
CFLAGS:=$(CFLAGS) $(KERNEL_ARCH_CFLAGS)
CPPFLAGS:=$(CPPFLAGS) $(KERNEL_ARCH_CPPFLAGS)
LDFLAGS:=$(LDFLAGS) $(KERNEL_ARCH_LDFLAGS)
LIBS:=$(LIBS) $(KERNEL_ARCH_LIBS)
KERNEL_OBJS= \
$(KERNEL_ARCH_OBJS) \
kernel/utils.o \
kernel/serial.o \
kernel/interrupts.o \
kernel/descriptor_tables.o\
kernel/kernel.o
OBJS=\
$(KERNEL_OBJS)
LINK_LIST=\
$(LDFLAGS) \
$(KERNEL_OBJS) \
$(LIBS) \
.PHONY: all clean install install-headers install-kernel
.SUFFIXES: .o .c .s
all: red.kernel
red.kernel: $(OBJS) $(ARCHDIR)/linker.ld
$(CC) -T $(ARCHDIR)/linker.ld -o $@ $(CFLAGS) $(LINK_LIST)
kernel/interrupts.o:
$(CC) -MD -c kernel/interrupts.c -o $@ -std=gnu11 $(CFLAGS) -mno-red-zone -mgeneral-regs-only $(CPPFLAGS)
.c.o:
$(CC) -MD -c $< -o $@ -std=gnu11 $(CFLAGS) $(CPPFLAGS)
.s.o:
nasm -f elf $< -o $@
clean:
rm -f red.kernel
rm -f $(OBJS) *.o */*.o */*/*.o
rm -f $(OBJS:.o=.d) *.d */*.d */*/*.d
install: install-headers install-kernel gen-iso
install-headers:
mkdir -p $(DESTDIR)$(INCLUDEDIR)
cp -R --preserve=timestamps include/. $(DESTDIR)$(INCLUDEDIR)/.
install-kernel: red.kernel
mkdir -p $(DESTDIR)$(BOOTDIR)
cp red.kernel $(DESTDIR)$(BOOTDIR)
gen-iso:
rm -f red.iso
cp red.kernel iso/boot/kernel.elf
genisoimage -R \
-b boot/grub/stage2_eltorito \
-no-emul-boot \
-A ProjectRED \
-input-charset utf8 \
-quiet \
-boot-info-table \
-o red.iso \
iso
-include $(OBJS:.o=.d)